Zenith Z-Note 486 Series

The Z-Note 425Ln, 425Lnp, and 425Lnc are 486-based business laptops, released in 1993 by Zenith Data Systems. They served as a refresh of the earlier 386-based Z-Notes which shared the same overall design.

The Z-Note 486s have built-in Ethernet, a very unique feature that was uncommon in 1993. They specifically use the AAUI connector, meaning an adapter is needed to hook them up to a modern network.

The Z-Note 486s lack any built-in pointing device, instead shipping with a Logitch clip-on trackball.

These laptops have great build quality to this day. The one issue you do need to tend to on any one of them is a full recap. There are surface mount electrolytic caps in the base on all laptops and on the screen of the 425Lnc model at least.

While the FCC ID leads back to Zenith, I'm fairly certain that this system was built for Zenith by Sanyo. The power supply is a Sanyo, the CMOS battery is a Sanyo, the motherboard is full of Sanyo chips, and the laptop was made in Japan.

Specifications

Spec	Z-Note 425Ln	Z-Note 425Lnp	Z-Note 425Lnc
CPU	CPU Type: Soldered QFP Intel 486SL @25MHz
Chipset	Unknown
RAM	Type: Proprietary, 2 slots Standard: 4MB Maximum: Unknown
Storage	2.5" IDE Requires Adapter: Sort of, has a cable inside Standard: 120MB		2.5" IDE Requires Adapter: Sort of, has a cable inside Standard: 200MB
Display Options	9.5" Passive Matrix Grayscale @640x480	9.5" Passive Matrix Color @640x480	8.4" Active Matrix Color @640x480 (Sharp LQ9D01 Series)
Graphics Chipset	Chips & Technologies 65530 VRAM: Unknown
Audio	PC Speaker
Main Battery	NiMH
CMOS Battery	Sanyo NiCad flat-pack (CADNICA 4KF-B400) (4.8V 400mAH)
Power Supply	Proprietary DIN connector - Sanyo 232-423
Media Drives	3.5" 1.44MB Floppy Drive (Teac FD-05HF)
PC Cards	None
Networking	- Modem - Ethernet (AAUI)
Other I/O	- 1x Parallel - 1x Serial - 1x VGA Out - 1x PS/2 - 1x Dock Connector
BIOS	Zenith
Pointing Device	None